Home / 21,338.02-29,434.08-12,382.26

Finding the Fourth Proportional to 21,338.02, 29,434.08 and 12,382.26

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Solution

The fourth proportional to 21,338.02, 29,434.08 and 12,382.26 is: 17,080.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,338.02 : 29,434.08 = 12,382.26 : x
  2. Step 2: Convert to fraction form
    21,338.02/29,434.08 = 12,382.26/x
  3. Step 3: Cross multiply
    21,338.02x = 29,434.08 × 12,382.26
  4. Step 4: Simplify right side
    21,338.02x = 364,460,431.42
  5. Step 5: Solve for x
    x = 364,460,431.42/21,338.02
  6. Step 6: Final answer
    x = 17,080.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.